added hwk / initial commit
hwk: Make style changes.

This...
  - Stops distributing the license (already distributed in
    /usr/share/licenses/common
  - Adds $pkgver to the source.
  - GPLv2 -> GPL2 (license should match something in
    /usr/share/licenses/common)
  - Makes other tiny, unimportant style changes.
hwk: Replace hardcoded package versions.